Fog lamp.
The general car in addition to the front high beam, low light, headlights, small lights, behind the driving lights, brake lights, in the car after the inconspicuous place there is a group of anti-fog lights. Rear fog lights are red lights with greater luminous intensity than taillights installed at the rear of vehicles in low visibility environments such as fog, rain or dust, so that other road traffic participants behind the vehicle can easily find them.
It is installed in the front of the car at a slightly lower position than the headlights, and is used to illuminate the road when driving in rain and fog. Because of the low visibility in fog, the driver's line of sight is limited. The light can increase the running distance, especially the light penetration of the yellow anti-fog lamp is strong, which can improve the visibility of the driver and the surrounding traffic participants, so that the coming car and pedestrians find each other at a distance.
Anti-fog lights are divided into front fog lights and rear fog lights, the front fog lights are generally bright yellow, and the rear fog lights are red. There is a little difference between the sign of the rear fog light and the front fog light, the light line of the front fog light sign is downward, and the rear fog light is parallel, which is generally located on the instrument control table in the car. Due to the high brightness and strong penetration of the anti-fog lamp, it will not produce diffuse reflection due to fog, so the correct use can effectively prevent the occurrence of accidents. In foggy weather, front and rear fog lights are usually used together.
Red and yellow are the most penetrating colors, but red means "no traffic," so yellow is chosen. Yellow is the purest color, and the yellow anti-fog lights of cars can penetrate very thick fog to a great distance. Due to the relationship of backscattering, the driver of the rear car turns on the headlights, which increases the background intensity and makes the image of the front car more blurred.
Front fog lamp
On the left are three oblique lines, crossed by a curved line, and on the right is a semi-elliptical figure.
Rear fog lamp
On the left is a semi-elliptical figure, and on the right are three horizontal lines, crossed by a curved line.
use
The role of fog lights is to let other vehicles see the car in fog or rainy days when visibility is greatly affected by the weather, so the light source of fog lights needs to have strong penetration. General vehicles use halogen fog lights, more advanced than halogen fog lights are LED fog lights.
The installation position of the fog lamp can only be below the bumper and the body is closest to the ground to ensure the role of the fog lamp. If the installation position is high, the light can not penetrate the rain and fog to illuminate the ground (the fog is generally thin below 1 meter), which is easy to cause danger.
Since the fog light switch is generally divided into three gears, the 0 gear is off, the first gear controls the front fog light, and the second gear controls the rear fog light. The front fog lights work when the first gear is on, and the front and rear fog lights work together when the second gear is on. Therefore, when turning on fog lights, it is recommended that you should know which gear the switch is in, so as to facilitate yourself without affecting others and ensure driving safety.
Operation method
1. Push the button to turn on the fog light. Some vehicles open the front and rear fog lights through the button, that is, there is a button marked with fog lights near the dashboard, after opening the light, press the front fog light, you can light the front fog light; Press the rear fog light to light the fog light behind the car.
2. Turn on the fog light. Some vehicle light joysticks are equipped with fog lights under the steering wheel or left hand air conditioning, which are turned on by rotation. As shown in Figure 2, when the button marked with fog light signal in the middle is twisted to the ON position, the front fog light is turned on, and then the button is twisted down to the position of the rear fog light, that is, the front and rear fog lights are turned on at the same time. Turn on fog lights under the steering wheel.
3. Turn on the fog light under the air conditioner on the left.
Maintenance method
When driving in the city at night without fog, do not use fog lights, and the front fog lights have no hood, which will make the car light dazzling and affect driving safety. Some drivers not only use the front fog lights, but also turn on the rear fog lights. Because the rear fog lamp bulb power is large, it will form dazzling light for the driver behind the car, which is easy to cause eye fatigue and affect driving safety.
Whether it is a front fog light or a rear fog light, as long as it is not bright, it indicates that the bulb has burned out and must be replaced. However, if it is not completely broken, but the brightness is reduced, the light is red and dim, it must not be taken lightly, because it may be a precursor to failure, and the reduced lighting capacity is also a major hidden danger for safe driving.
There are several reasons for the decrease in brightness, the most common is that the lamp's astigmatism glass or mirror accumulated dirt, then you need to do is just use lint or lens paper to clean the dirt. Another reason is that the battery charging capacity is reduced, and the lack of power leads to insufficient brightness, so that a new battery needs to be replaced. There is also a possibility that the aging of the line or the wire is too thin, resulting in an increase in resistance and thus affecting the power supply, which not only affects the work of the bulb, but can even lead to overheating of the line and cause fire.
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